Why can iPhones share cellular data but not their wifi?
In: Technology
Not sure if it is really like this, so take the explanation with a small grain of salt.
The phone has only one Wifi antenna and chip. That chip can be used to connect a wifi (for example in your house). Now, that same chip (and antenna) can be switched to “access point” mode. Then other wifi antennas (on other phones) can connect to it. Due to technical reasons same antenna and chip cannot be simultaneously in access point mode and connected to an external wifi (your home wifi). The mobile network is different chip and antenna so it can be connected to the internet and that connection is shared through the wifi antenna and chip that are in “access point” mode.
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